Maurymontia, Porto & Iglesias & Pérez-González, 2025

Porto, Willians, Iglesias, Patricia P. & Pérez-González, Abel, 2025, Disentangling the South American “ Ceratomontia ”: new genus, new combinations, and new species (Opiliones: Laniatores: Triaenonychidae), Zootaxa 5729 (2), pp. 233-263 : 234-236

Maurymontia gen. nov.

urn:lsid:zoobank.org:act:

Ceratomontia [part.]: Canals 1939: 144; Ringuelet 1955a: 13; 1955b: 283; 1956: 137; 1957: 12; 1959: 255; 1963: 41; Capocasale 1966: 631; 1968: 69; Muñoz-Cuevas & Vachon 1979: 253; Galiano & Maury 1979: 323; Soares & Soares 1979: 173; Maury & Roig Alsina 1985: 84; Maury 1992: 3; 1999: 13; Acosta 1993: 16; 1996: 75; Capocasale & Gudynas 1993: 8; Acosta et al. 1995: 23; Acosta & Maury 1998: 579; Kury 2003: 20–21; Porto et al. 2022: 683.

Type species: Ceratomontia argentina Canals, 1939 .

Etymology

The genus name is a combination of the surname ‘Maury’, in honor of the Argentinean arachnologist Emilio Maury, who dedicated many years to the taxonomy and systematics of South American triaenonychids, and the truncation of pre-existing genus Ceratomontia . Grammatical gender: feminine.

Diagnosis

It is distinguished from all other Triaenonychidae genera by the unique morphology of the male genitalia, characterized by the combination of a ventral plate without cleft (except in Maurymontia mborore sp. nov.) and bearing two pairs of dorsal macrosetae, stylus filiform ( e.g., Fig. 7 ) and ocularium projected forward ( e.g., Fig. 10 ).

Composition. Six species, Maurymontia argentina ( Canals, 1939) comb. nov., Maurymontia brasiliana ( Maury, 1999) comb. nov., Maurymontia centralis (Maury & Roig Alsina, 1985) comb. nov., Maurymontia mborore sp. nov., Maurymontia mendocina (Maury & Roig Alsina, 1985) comb. nov., Maurymontia grismadoi sp. nov., Maurymontia trescerros sp. nov.

Distribution

ARGENTINA: Buenos Aires, Córdoba, Corrientes, Mendoza, Misiones, San Luís. BRAZIL: Santa Catarina, Rio Grande do Sul. URUGUAY: Colonia, San José, Lavalleja, Maldonado, Rocha ( Fig. 2 A ) .

Figures

FIGURE 2. Distribution of Maurymontia species with elevation layers (A). Distribution of Maurymontia species, showing the representation of the Peripampasic Arc (B).

FIGURE 7. Maurymontia argentina comb. nov., SEM images of male. Penis, ventral view (A), ventro-apical view (B), lateral view (C), dorsal view (D–E). Colors: blue (capsula externa), red (capsula interna), green (ventral plate). Scale bars: A–D 50 µm, E 200 µm.

FIGURE 10. Maurymontia centralis comb. nov., male (A, C, E), female (B, D, F). Scale bar 1 mm.